Delay display of init page

demo/src/html/index.html.template

@@ -62,24 +62,10 @@
         justify-content: center;
         align-items: center;
       }
-      #ha-launch-screen svg {
-        width: 170px;
-        flex-shrink: 0;
-      }
-      #ha-launch-screen .ha-launch-screen-spacer {
-        flex: 1;
-      }
     </style>
   </head>
   <body>
-    <div id="ha-launch-screen">
-      <div class="ha-launch-screen-spacer"></div>
-      <svg version="1.1" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
-        <rect fill="#41bdf5" width="200" height="200" ry="16.4"/>
-        <path fill="#fff" d="m38.416 165.29v-53.456h-13.901a3.7332 3.7332 0 0 1-2.662-6.3504l74.804-76.084c1.8068-1.8376 4.7612-1.8628 6.5992-0.056l0.048 0.048 39.04 39.518v-7.3188a3.1112 3.1112 0 0 1 3.1112-3.1112h12.964a3.1112 3.1112 0 0 1 3.1116 3.1112v26.855l16.627 17.047a3.7332 3.7332 0 0 1-2.6728 6.34h-13.954v53.456a3.1112 3.1112 0 0 1-3.1112 3.1112h-116.89a3.1112 3.1112 0 0 1-3.1112-3.1112zm82.556-65.304a6.0116 6.0116 0 0 0 0.584-2.5944c0-3.3232-2.684-6.0172-5.9956-6.0172-3.3112 0-5.9956 2.694-5.9956 6.0172s2.6844 6.0176 5.996 6.0176c0.9256 0 1.802-0.2108 2.5848-0.5868l8.6072 8.6384v8.3672l-10.792 10.831v-7.936a6.0184 6.0184 0 0 0 3.9972-5.6748c0-3.3232-2.6844-6.0176-5.996-6.0176-3.3112 0-5.996 2.6944-5.996 6.0176 0 2.62 1.6688 4.8488 3.9976 5.6748v11.947l-9.9932 10.029v-58.912l8.2076-8.2368a5.9544 5.9544 0 0 0 2.5848 0.5864c3.3116 0 5.996-2.694 5.996-6.0176 0-3.3232-2.6844-6.0172-5.996-6.0172-3.3112 0-5.9956 2.694-5.9956 6.0172 0 0.9292 0.2096 1.8088 0.584 2.5944l-7.3792 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0-5.996 2.694-5.996 6.0176 0 2.62 1.6688 4.8488 3.9976 5.6748v18.366l-5.7808-5.8016zm-51.78 57.58c-1.3244 0-2.3984-1.0776-2.3984-2.4068s1.074-2.4068 2.3984-2.4068c1.3248 0 2.3984 1.0776 2.3984 2.4068s-1.0736 2.4068-2.3984 2.4068zm17.588-18.052c-1.3248 0-2.3988-1.0776-2.3988-2.4068s1.074-2.4068 2.3984-2.4068c1.3248 0 2.3984 1.0776 2.3984 2.4068s-1.0736 2.4068-2.3984 2.4068zm-20.786-2.808c-1.3248 0-2.3984-1.0776-2.3984-2.4068s1.0736-2.4068 2.3984-2.4068c1.3244 0 2.3984 1.0776 2.3984 2.4068s-1.074 2.4068-2.3984 2.4068zm-1.9988-20.058c-1.3244 0-2.398-1.0776-2.398-2.4072 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm49.964 2.808c-1.3244 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm27.181 18.453c-1.324 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm-10.392 19.255c-1.3248 0-2.3984-1.0776-2.3984-2.4068s1.0736-2.4068 2.3984-2.4068c1.3244 0 2.3984 1.0776 2.3984 2.4068s-1.074 2.4068-2.3984 2.4068zm11.192-57.364c-1.3244 0-2.3984-1.078-2.3984-2.4072s1.074-2.4068 2.3984-2.4068 2.3984 1.0776 2.3984 2.4068-1.074 2.4072-2.3984 2.4072zm-13.191-15.645c-1.3244 0-2.3984-1.0776-2.3984-2.4068 0-1.3296 1.074-2.4072 2.3984-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm-15.989-9.628c-1.3244 0-2.398-1.0772-2.398-2.4068 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm-25.582 0c-1.324 0-2.398-1.0772-2.398-2.4068 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm-20.785 9.2268c-1.3244 0-2.3984-1.0776-2.3984-2.4068 0-1.3296 1.074-2.4072 2.3984-2.4072s2.3984 1.0776 2.3984 2.4072c0 1.3292-1.074 2.4068-2.3984 2.4068zm15.189 14.843c-1.3244 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.Line truncated
-      </svg>
-      <div id="ha-launch-screen-info-box" class="ha-launch-screen-spacer"></div>
-    </div>
+    <div id="ha-launch-screen"></div>
     <ha-demo></ha-demo>
     <%= renderTemplate("../../../src/html/_js_base.html.template") %>
     <%= renderTemplate("../../../src/html/_preload_roboto.html.template") %>

src/html/index.html.template

@@ -62,24 +62,10 @@
         justify-content: center;
         align-items: center;
       }
-      #ha-launch-screen svg {
-        width: 170px;
-        flex-shrink: 0;
-      }
-      #ha-launch-screen .ha-launch-screen-spacer {
-        flex: 1;
-      }
     </style>
   </head>
   <body>
-    <div id="ha-launch-screen">
-      <div class="ha-launch-screen-spacer"></div>
-      <svg version="1.1" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
-        <rect fill="#41bdf5" width="200" height="200" ry="16.4"/>
-        <path fill="#fff" d="m38.416 165.29v-53.456h-13.901a3.7332 3.7332 0 0 1-2.662-6.3504l74.804-76.084c1.8068-1.8376 4.7612-1.8628 6.5992-0.056l0.048 0.048 39.04 39.518v-7.3188a3.1112 3.1112 0 0 1 3.1112-3.1112h12.964a3.1112 3.1112 0 0 1 3.1116 3.1112v26.855l16.627 17.047a3.7332 3.7332 0 0 1-2.6728 6.34h-13.954v53.456a3.1112 3.1112 0 0 1-3.1112 3.1112h-116.89a3.1112 3.1112 0 0 1-3.1112-3.1112zm82.556-65.304a6.0116 6.0116 0 0 0 0.584-2.5944c0-3.3232-2.684-6.0172-5.9956-6.0172-3.3112 0-5.9956 2.694-5.9956 6.0172s2.6844 6.0176 5.996 6.0176c0.9256 0 1.802-0.2108 2.5848-0.5868l8.6072 8.6384v8.3672l-10.792 10.831v-7.936a6.0184 6.0184 0 0 0 3.9972-5.6748c0-3.3232-2.6844-6.0176-5.996-6.0176-3.3112 0-5.996 2.6944-5.996 6.0176 0 2.62 1.6688 4.8488 3.9976 5.6748v11.947l-9.9932 10.029v-58.912l8.2076-8.2368a5.9544 5.9544 0 0 0 2.5848 0.5864c3.3116 0 5.996-2.694 5.996-6.0176 0-3.3232-2.6844-6.0172-5.996-6.0172-3.3112 0-5.9956 2.694-5.9956 6.0172 0 0.9292 0.2096 1.8088 0.584 2.5944l-7.3792 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0-5.996 2.694-5.996 6.0176 0 2.62 1.6688 4.8488 3.9976 5.6748v18.366l-5.7808-5.8016zm-51.78 57.58c-1.3244 0-2.3984-1.0776-2.3984-2.4068s1.074-2.4068 2.3984-2.4068c1.3248 0 2.3984 1.0776 2.3984 2.4068s-1.0736 2.4068-2.3984 2.4068zm17.588-18.052c-1.3248 0-2.3988-1.0776-2.3988-2.4068s1.074-2.4068 2.3984-2.4068c1.3248 0 2.3984 1.0776 2.3984 2.4068s-1.0736 2.4068-2.3984 2.4068zm-20.786-2.808c-1.3248 0-2.3984-1.0776-2.3984-2.4068s1.0736-2.4068 2.3984-2.4068c1.3244 0 2.3984 1.0776 2.3984 2.4068s-1.074 2.4068-2.3984 2.4068zm-1.9988-20.058c-1.3244 0-2.398-1.0776-2.398-2.4072 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm49.964 2.808c-1.3244 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm27.181 18.453c-1.324 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm-10.392 19.255c-1.3248 0-2.3984-1.0776-2.3984-2.4068s1.0736-2.4068 2.3984-2.4068c1.3244 0 2.3984 1.0776 2.3984 2.4068s-1.074 2.4068-2.3984 2.4068zm11.192-57.364c-1.3244 0-2.3984-1.078-2.3984-2.4072s1.074-2.4068 2.3984-2.4068 2.3984 1.0776 2.3984 2.4068-1.074 2.4072-2.3984 2.4072zm-13.191-15.645c-1.3244 0-2.3984-1.0776-2.3984-2.4068 0-1.3296 1.074-2.4072 2.3984-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.0736 2.4068-2.3984 2.4068zm-15.989-9.628c-1.3244 0-2.398-1.0772-2.398-2.4068 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm-25.582 0c-1.324 0-2.398-1.0772-2.398-2.4068 0-1.3292 1.0736-2.4068 2.398-2.4068 1.3248 0 2.3984 1.0776 2.3984 2.4068 0 1.3296-1.0736 2.4072-2.3984 2.4072zm-20.785 9.2268c-1.3244 0-2.3984-1.0776-2.3984-2.4068 0-1.3296 1.074-2.4072 2.3984-2.4072s2.3984 1.0776 2.3984 2.4072c0 1.3292-1.074 2.4068-2.3984 2.4068zm15.189 14.843c-1.3244 0-2.398-1.0776-2.398-2.4068 0-1.3296 1.0736-2.4072 2.398-2.4072 1.3248 0 2.3984 1.0776 2.3984 2.4072 0 1.3292-1.Line truncated
-      </svg>
-      <div id="ha-launch-screen-info-box" class="ha-launch-screen-spacer"></div>
-    </div>
+    <div id="ha-launch-screen"></div>
     <home-assistant></home-assistant>
     <%= renderTemplate("_js_base.html.template") %>
     <%= renderTemplate("_preload_roboto.html.template") %>

src/layouts/ha-init-page.ts

@@ -1,5 +1,6 @@
 import { css, CSSResultGroup, html, LitElement, PropertyValues } from "lit";
 import { property, state } from "lit/decorators";
+import "../components/ha-logo-svg";
 
 class HaInitPage extends LitElement {
   @property({ type: Boolean }) public error = false;
@@ -13,36 +14,36 @@ class HaInitPage extends LitElement {
   private _retryInterval?: number;
 
   protected render() {
-    return this.error
-      ? html`
-          <p>Unable to connect to Home Assistant.</p>
-          <p class="retry-text">
-            Retrying in ${this._retryInSeconds} seconds...
-          </p>
-          <mwc-button @click=${this._retry}>Retry now</mwc-button>
-          ${location.host.includes("ui.nabu.casa")
-            ? html`
-                <p>
-                  It is possible that you are seeing this screen because your
-                  Home Assistant is not currently connected. You can ask it to
-                  come online from your
-                  <a href="https://account.nabucasa.com/"
-                    >Nabu Casa account page</a
-                  >.
-                </p>
-              `
-            : ""}
-        `
-      : html`
-          <div id="progress-indicator-wrapper">
-            <ha-circular-progress active></ha-circular-progress>
-          </div>
-          <div id="loading-text">
-            ${this.migration
-              ? "Database migration in progress, please wait this might take some time"
-              : "Loading data"}
-          </div>
-        `;
+    return html`<ha-logo-svg></ha-logo-svg>${this.error
+        ? html`
+            <p>Unable to connect to Home Assistant.</p>
+            <p class="retry-text">
+              Retrying in ${this._retryInSeconds} seconds...
+            </p>
+            <mwc-button @click=${this._retry}>Retry now</mwc-button>
+            ${location.host.includes("ui.nabu.casa")
+              ? html`
+                  <p>
+                    It is possible that you are seeing this screen because your
+                    Home Assistant is not currently connected. You can ask it to
+                    come online from your
+                    <a href="https://account.nabucasa.com/"
+                      >Nabu Casa account page</a
+                    >.
+                  </p>
+                `
+              : ""}
+          `
+        : html`
+            <div id="progress-indicator-wrapper">
+              <ha-circular-progress active></ha-circular-progress>
+            </div>
+            <div id="loading-text">
+              ${this.migration
+                ? "Database migration in progress, please wait this might take some time"
+                : "Loading data"}
+            </div>
+          `}`;
   }
 
   disconnectedCallback() {
@@ -63,12 +64,15 @@ class HaInitPage extends LitElement {
 
   protected firstUpdated() {
     this._showProgressIndicatorTimeout = window.setTimeout(() => {
+      this._showProgressIndicatorTimeout = undefined;
       import("../components/ha-circular-progress");
     }, 5000);
 
     this._retryInterval = window.setInterval(() => {
       const remainingSeconds = this._retryInSeconds--;
       if (remainingSeconds <= 0) {
+        clearInterval(this._retryInterval);
+        this._retryInterval = undefined;
         this._retry();
       }
     }, 1000);
@@ -86,6 +90,11 @@ class HaInitPage extends LitElement {
         flex-direction: column;
         align-items: center;
       }
+      ha-logo-svg {
+        height: 170px;
+        width: 170px;
+        padding: 12px;
+      }
       #progress-indicator-wrapper {
         display: flex;
         align-items: center;

src/layouts/home-assistant.ts

@@ -9,15 +9,11 @@ import { HassElement } from "../state/hass-element";
 import QuickBarMixin from "../state/quick-bar-mixin";
 import { HomeAssistant, Route } from "../types";
 import { storeState } from "../util/ha-pref-storage";
-import {
-  renderLaunchScreenInfoBox,
-  removeLaunchScreen,
-} from "../util/launch-screen";
+import { renderLaunchScreen, removeLaunchScreen } from "../util/launch-screen";
 import {
   registerServiceWorker,
   supportsServiceWorker,
 } from "../util/register-service-worker";
-import "./ha-init-page";
 import "./home-assistant-main";
 
 const useHash = __DEMO__;
@@ -39,8 +35,12 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
 
   private _haVersion?: string;
 
+  private _error?: boolean;
+
   private _hiddenTimeout?: number;
 
+  private _renderInitTimeout?: number;
+
   private _visiblePromiseResolve?: () => void;
 
   constructor() {
@@ -89,6 +89,10 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
     ) {
       this.render = this.renderHass;
       this.update = super.update;
+      if (this._renderInitTimeout) {
+        clearTimeout(this._renderInitTimeout);
+        this._renderInitTimeout = undefined;
+      }
       removeLaunchScreen();
     }
     super.update(changedProps);
@@ -139,7 +143,9 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
     // Render launch screen info box (loading data / error message)
     // if Home Assistant is not loaded yet.
     if (this.render !== this.renderHass) {
-      this._renderInitInfo(false);
+      this._renderInitTimeout = window.setTimeout(() => {
+        this._renderInitInfo();
+      }, 1000);
     }
   }
 
@@ -153,7 +159,7 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
     }
     if (changedProps.has("_databaseMigration")) {
       if (this.render !== this.renderHass) {
-        this._renderInitInfo(false);
+        this._renderInitInfo();
       } else if (this._databaseMigration) {
         // we already removed the launch screen, so we refresh to add it again to show the migration screen
         location.reload();
@@ -233,7 +239,8 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
       this._haVersion = conn.haVersion;
       this.initializeHass(auth, conn);
     } catch (err: any) {
-      this._renderInitInfo(true);
+      this._error = true;
+      this._renderInitInfo();
     }
   }
 
@@ -290,10 +297,15 @@ export class HomeAssistantAppEl extends QuickBarMixin(HassElement) {
     }
   }
 
-  private _renderInitInfo(error: boolean) {
-    renderLaunchScreenInfoBox(
+  private async _renderInitInfo() {
+    if (this._renderInitTimeout) {
+      clearTimeout(this._renderInitTimeout);
+    }
+    this._renderInitTimeout = undefined;
+    await import("./ha-init-page");
+    renderLaunchScreen(
       html`<ha-init-page
-        .error=${error}
+        .error=${this._error}
         .migration=${this._databaseMigration}
       ></ha-init-page>`
     );

src/util/launch-screen.ts

@@ -7,9 +7,9 @@ export const removeLaunchScreen = () => {
   }
 };
 
-export const renderLaunchScreenInfoBox = (content: TemplateResult) => {
-  const infoBoxElement = document.getElementById("ha-launch-screen-info-box");
-  if (infoBoxElement) {
-    render(content, infoBoxElement);
+export const renderLaunchScreen = (content: TemplateResult) => {
+  const launchScreen = document.getElementById("ha-launch-screen");
+  if (launchScreen) {
+    render(content, launchScreen);
   }
 };